class_docstr: A structured environment which returns random actions
docstr: Performs any necessary cleanup.
          
docstr_tok: ["Performs","any","necessary","cleanup","."]
code: def close(self) -> None:
      """Performs any necessary cleanup."""
      self.env.close()
  
imports: from typing import Any, Dict, Union, Tuple, Callable, Optional
  import gym
  import numpy
  from maze.core.env.maze_env import MazeEnv
  from maze.core.env.structured_env import StructuredEnv, StepKeyType, ActorID
  from maze.core.env.structured_env_spaces_mixin import StructuredEnvSpacesMixin
  from maze.core.wrappers.wrapper import Wrapper
label_desc: Use image node_id 8 for calling the DummyStructuredEnvironment obj's underlying member method code with example usage: obj.close() without return types